DE3873112T2 - WASTEWATER TREATMENT METHOD. - Google Patents

WASTEWATER TREATMENT METHOD.

Info

Publication number
DE3873112T2
DE3873112T2 DE19883873112 DE3873112T DE3873112T2 DE 3873112 T2 DE3873112 T2 DE 3873112T2 DE 19883873112 DE19883873112 DE 19883873112 DE 3873112 T DE3873112 T DE 3873112T DE 3873112 T2 DE3873112 T2 DE 3873112T2
Authority
DE
Germany
Prior art keywords
treatment method
wastewater treatment
wastewater
treatment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE19883873112
Other languages
German (de)
Other versions
DE3873112D1 (en
Inventor
Larry S Jaycox
Hermann W Peterscheck
William L Schwoyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Waste Treatment Patents & Res
Original Assignee
Waste Treatment Patents & Res
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Waste Treatment Patents & Res filed Critical Waste Treatment Patents & Res
Application granted granted Critical
Publication of DE3873112D1 publication Critical patent/DE3873112D1/en
Publication of DE3873112T2 publication Critical patent/DE3873112T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/38Treatment of water, waste water, or sewage by centrifugal separation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/58Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • C02F1/586Treatment of water, waste water, or sewage by removing specified dissolved compounds by removing ammoniacal nitrogen
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/722Oxidation by peroxides
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/76Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/78Treatment of water, waste water, or sewage by oxidation with ozone
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/02Biological treatment
    • C02F11/04Anaerobic treatment; Production of methane by such processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/06Treatment of sludge; Devices therefor by oxidation
    • C02F11/08Wet air oxidation
    • C02F11/083Wet air oxidation using deep well reactors
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/18Treatment of sludge; Devices therefor by thermal conditioning
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/12Halogens or halogen-containing compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/16Nitrogen compounds, e.g. ammonia
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes
    • C02F3/286Anaerobic digestion processes including two or more steps
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124Water desalination
    • Y02A20/131Reverse-osmosis
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/20Sludge processing
DE19883873112 1987-02-13 1988-02-10 WASTEWATER TREATMENT METHOD. Expired - Fee Related DE3873112T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/014,330 US4765900A (en) 1987-02-13 1987-02-13 Process for the treatment of waste

Publications (2)

Publication Number Publication Date
DE3873112D1 DE3873112D1 (en) 1992-09-03
DE3873112T2 true DE3873112T2 (en) 1992-12-03

Family

ID=21764828

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19883873112 Expired - Fee Related DE3873112T2 (en) 1987-02-13 1988-02-10 WASTEWATER TREATMENT METHOD.

Country Status (5)

Country Link
US (1) US4765900A (en)
EP (1) EP0278745B1 (en)
CA (1) CA1323943C (en)
DE (1) DE3873112T2 (en)
DK (1) DK63688A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19937876C2 (en) * 1999-08-17 2002-11-14 Aquatec Gmbh Inst Fuer Wassera Process for the biological conversion of organic substances to methane gas

Families Citing this family (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3815271A1 (en) * 1988-05-05 1989-11-16 Sandoz Ag METHOD FOR CLEANING INDUSTRIAL SEWAGE
DE3901005A1 (en) * 1989-01-14 1990-07-19 Rheinische Braunkohlenw Ag DEVICE AND METHOD FOR PURIFYING WASTE WATER
DE3913482A1 (en) * 1989-04-24 1990-10-25 Charles Zampieri METHOD AND DEVICE FOR TREATING SALT LAKES AND POLLUTED MINERAL SALT OR MIXTURE
CA2104791A1 (en) * 1991-02-27 1992-08-28 Felix Steyskal Process for separate treatment and disposal of mixtures of solid and liquid organic waste materials
DE4120808A1 (en) * 1991-06-24 1993-01-14 Recycling Energie Abfall REPROCESSING OF WASTE FOR ANAEROBIC PLANNING OF ORGANIC BIOGENIC COMPONENTS OF WASTE, ESPECIALLY OF BIOMUELL, WET WASTE, RESIDUAL WASTE AND COMMERCIAL WASTE
US5190665A (en) * 1991-08-12 1993-03-02 Titmas James A Process and apparatus for removing carbon dioxide and stripping another component from a liquid stream
US5928403A (en) * 1993-09-30 1999-07-27 Trustees Of University Of Arkansas Methods for decreasing non-point source pollution from poultry manure
US5865143A (en) * 1993-09-30 1999-02-02 Trustees Of University Of Arkansas And United States Of America High-rise laying hen rearing facility and method
US5622697A (en) * 1993-09-30 1997-04-22 The Board Of Trustees Of The University Of Arkansas Use of alum to inhibit ammonia volatilization and to decrease phosphorus solubility in poultry litter
DE4400243A1 (en) * 1994-01-07 1995-07-13 Bayer Ag Process for the wet oxidative treatment of organic pollutants in waste water
US5551472A (en) 1994-08-01 1996-09-03 Rpc Waste Management Services, Inc. Pressure reduction system and method
US5755974A (en) 1994-08-01 1998-05-26 Rpc Waste Management Services, Inc. Method and apparatus for reacting oxidizable matter with a salt
US5620606A (en) 1994-08-01 1997-04-15 Rpc Waste Management Services, Inc. Method and apparatus for reacting oxidizable matter with particles
KR0142723B1 (en) * 1995-02-17 1998-07-01 유석원 High concentration wastewater treatment method using membrane separation
US6017460A (en) 1996-06-07 2000-01-25 Chematur Engineering Ab Heating and reaction system and method using recycle reactor
US5890454A (en) * 1997-01-21 1999-04-06 Trustees Of The University Of Arkansas And The United States Of America Swine rearing facility and method for reducing ammonia and odors therein
US5885461A (en) * 1997-02-07 1999-03-23 Purin-Pur, Inc. Process and system for treatment of pig and swine manure for environmental enhancement
NL1006753C2 (en) * 1997-08-08 1999-02-09 Waterleiding Friesland Nv Method for decolorizing liquids, in particular groundwater, using a membrane filtration unit, device for use in such a method, as well as decolorized groundwater.
US6409788B1 (en) 1998-01-23 2002-06-25 Crystal Peak Farms Methods for producing fertilizers and feed supplements from agricultural and industrial wastes
EP1056691A1 (en) * 1998-02-20 2000-12-06 Bioscan A/S Method and plant for the treatment of liquid organic waste
JP3653392B2 (en) * 1998-06-30 2005-05-25 シャープ株式会社 Waste water treatment method and waste water treatment equipment
US6464875B1 (en) 1999-04-23 2002-10-15 Gold Kist, Inc. Food, animal, vegetable and food preparation byproduct treatment apparatus and process
EP1583602A1 (en) * 2000-05-19 2005-10-12 Purin-Pur Inc. Method and system for treating swine manure
EP1595551B1 (en) * 2000-08-22 2009-11-18 GFE Patent A/S Concept for slurry separation and biogas production.
US6508078B2 (en) 2000-10-26 2003-01-21 Crystal Peak Farms Separation of purified water and nutrients from agricultural and farm wastes
US6521129B1 (en) 2001-08-24 2003-02-18 Ken Stamper Process for producing energy, feed material and fertilizer products from manure
US7318894B2 (en) * 2001-08-29 2008-01-15 Graham John Gibson Juby Method and system for treating wastewater
US20030057160A1 (en) 2001-09-26 2003-03-27 Williams Derek P. Method for treating hog and animal waste
US20030062305A1 (en) * 2001-09-29 2003-04-03 Khudenko Boris M. Biological processes
AU2002348166A1 (en) * 2001-11-16 2003-06-10 Ch2M Hill, Inc. Method and apparatus for the treatment of particulate biodegradable organic waste
DE10205950A1 (en) * 2002-02-12 2003-08-21 3A Abwasser Abfall Process and device for the treatment of liquids containing ammonium, phosphate and potassium
CA2382813C (en) * 2002-04-22 2008-09-02 Kenneth Haggerty Process for recovery of nutrients from wastewater effluent
US7153427B2 (en) * 2002-07-22 2006-12-26 Environmental Energy & Engineering Co. Nitrogen recovery system and method using heated air as stripping gas
DK1561730T3 (en) * 2002-10-22 2011-06-14 Osaka Ind Promotion Org Process for producing methane gas
CA2416690C (en) * 2003-01-20 2008-08-12 Alberta Research Council Inc. Process for removal and recovery of nutrients from digested manure or other organic wastes
WO2004087345A1 (en) * 2003-03-31 2004-10-14 Tama-Tlo, Ltd. Method for treating organic material utilizing solid-liquid two phase circulation process
WO2005035697A1 (en) * 2003-10-10 2005-04-21 Ecology Energy Llc Methods and systems for dewatering and gasification
US7591952B2 (en) * 2003-12-23 2009-09-22 Wing Yip Young Water treatment mixture and methods and system for use
US7198717B2 (en) * 2004-08-26 2007-04-03 Graham John Gibson Juby Anoxic biological reduction system
SE528840C2 (en) * 2004-11-15 2007-02-27 Chematur Eng Ab Reactor and process for supercritical water oxidation
SE529006C2 (en) * 2004-11-15 2007-04-03 Chematur Eng Ab Process and system for supercritical water oxidation of a stream containing oxidizable material
US7968057B2 (en) * 2004-11-23 2011-06-28 Estech Europe Limited Autoclave
US20100213123A1 (en) 2007-01-09 2010-08-26 Marston Peter G Ballasted sequencing batch reactor system and method for treating wastewater
US20110036771A1 (en) 2007-01-09 2011-02-17 Steven Woodard Ballasted anaerobic system and method for treating wastewater
AU2008205247B2 (en) 2007-01-09 2010-07-01 Evoqua Water Technologies Llc A system and method for removing dissolved contaminants, particulate contaminants, and oil contaminants from industrial waste water
WO2008086010A1 (en) * 2007-01-09 2008-07-17 Cambridge Water Technology, Inc. System and method for enhancing an activated sludge process
US8470172B2 (en) * 2007-01-09 2013-06-25 Siemens Industry, Inc. System for enhancing a wastewater treatment process
US7968760B2 (en) * 2007-03-16 2011-06-28 Ch2M Hill, Inc. Treatment of particulate biodegradable organic waste by thermal hydrolysis using condensate recycle
TWI418419B (en) * 2007-07-13 2013-12-11 Biological source waste disposal method and device
US7927491B2 (en) * 2007-12-21 2011-04-19 Highmark Renewables Research Limited Partnership Integrated bio-digestion facility
US20090193863A1 (en) * 2008-02-05 2009-08-06 The United States Of America, As Represented By The Secretary Of Agriculture Process for Removing and Recovering Phosphorus from Animal Waste
AR074261A1 (en) * 2008-11-04 2011-01-05 Highmark Renewables Res Ltd Partnership INCREASED FERMENTATION OF ETHANOL USING BIODIGESTATE
US20100297740A1 (en) * 2009-05-21 2010-11-25 Xiaomei Li Use of Anaerobic Digestion to Destroy Biohazards and to Enhance Biogas Production
EP2390235B1 (en) * 2010-05-31 2019-08-14 André Holzer Method and plant for the treatment of liquid organic waste material
US9090496B2 (en) 2010-07-27 2015-07-28 WISErg Corporation Methods and systems for processing organic material
IT1404148B1 (en) * 2010-12-28 2013-11-15 Simam Spa METHOD FOR THE TREATMENT OF EXHAUSTED SLUDGE AND ITS APPARATUS
NL2005980C2 (en) 2011-01-10 2012-07-11 Agri Separation Technologies B V Process for treating manure.
US10919792B2 (en) 2012-06-11 2021-02-16 Evoqua Water Technologies Llc Treatment using fixed film processes and ballasted settling
CA2881703C (en) 2012-09-26 2020-12-22 Evoqua Water Technologies Llc System for measuring the concentration of magnetic ballast in a slurry
US9090487B2 (en) * 2012-10-26 2015-07-28 Siemens Energy, Inc. Water treatment apparatus incorporating wet air regeneration and powdered activated carbon treatment
DE102012220810B3 (en) * 2012-11-14 2014-02-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process for increased phosphorus recovery from organic residues
US9181138B2 (en) 2013-03-12 2015-11-10 WISErg Corporation Methods and systems for stabilizing organic material
IL234889A0 (en) * 2014-09-29 2014-12-31 Tevet Water Tech Ltd Animal farming wastewater treatment
CN105967490A (en) * 2016-06-27 2016-09-28 东方电气集团东方锅炉股份有限公司 Method and continuous system for treating wet organic waste
CN112055697A (en) * 2018-03-06 2020-12-08 环境工程师国际私人有限公司 Method for remediating industrial wastewater
FR3079228B1 (en) * 2018-03-22 2022-06-10 Suez Groupe METHOD FOR THE SIMULTANEOUS REDUCTION OF N, P, S IN ORGANIC MATTER AND DEVICE FOR TREATMENT OF ORGANIC MATTER
US20220112109A1 (en) * 2019-02-12 2022-04-14 Paulee Cleantec Ltd. Organic waste treatment process
CN112624547B (en) * 2020-12-23 2021-08-24 江苏省环境科学研究院 Sludge oxidation treatment system and method

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1617014A (en) * 1922-02-07 1927-02-08 Celite Company Process for disposal of sewage
US4076620A (en) * 1971-11-22 1978-02-28 Monsanto Research Corporation Process for the disposal of sewage
DE2247841C3 (en) * 1972-09-29 1981-02-12 Michigan Tech Fund, Houghton, Mich. (V.St.A.) Process for the wet oxidation of carbonaceous waste material
US3961078A (en) * 1973-01-24 1976-06-01 Stitt Paul A Soluble waste conversion process and pasteurized proteinaceous products
US4053394A (en) * 1974-04-18 1977-10-11 Pliny Fisk Process for separating and converting waste into useable products
US3932275A (en) * 1974-08-29 1976-01-13 Amax Resource Recovery Systems, Inc. Process for the treatment of mineral slimes
US3930998A (en) * 1974-09-18 1976-01-06 Sterling Drug Inc. Wastewater treatment
US4040953A (en) * 1976-03-10 1977-08-09 Rectech, Inc. Anaerobic digestion process
US4272383A (en) * 1978-03-17 1981-06-09 Mcgrew Jay Lininger Method and apparatus for effecting subsurface, controlled, accelerated chemical reactions
GB2018812B (en) * 1978-04-12 1982-07-28 Ystgaard O M Treatment of waste material in the presence of water
GB2033366A (en) * 1978-10-12 1980-05-21 Sterling Drug Inc Process for Producing Energy from Low Grade Fuels
GB2043045B (en) * 1978-12-15 1983-02-02 Osaka Gas Co Ltd Process for treating ammonia-containing waste water
US4519921A (en) * 1983-08-11 1985-05-28 Hydro Fuels, Inc. Methods for removing pollutants from water and waste water and for reducing sludge resistance to dewatering

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19937876C2 (en) * 1999-08-17 2002-11-14 Aquatec Gmbh Inst Fuer Wassera Process for the biological conversion of organic substances to methane gas

Also Published As

Publication number Publication date
EP0278745A3 (en) 1988-10-19
EP0278745B1 (en) 1992-07-29
CA1323943C (en) 1993-11-02
US4765900A (en) 1988-08-23
DK63688D0 (en) 1988-02-08
EP0278745A2 (en) 1988-08-17
DE3873112D1 (en) 1992-09-03
DK63688A (en) 1988-08-14

Similar Documents

Publication Publication Date Title
DE3873112D1 (en) WASTEWATER TREATMENT METHOD.
DE68904598D1 (en) WASTEWATER TREATMENT METHOD.
ES2016363B3 (en) METHOD FOR WASTEWATER TREATMENT.
DE3789805D1 (en) Sludge processing.
ES519388A0 (en) WASTEWATER TREATMENT PROCEDURE.
DE3486057T2 (en) HEAVY TREATMENT PROCESS.
DE3887353D1 (en) TREATMENT PROCEDURE FOR STOMACH-DISEASES.
NO167122C (en) IMPLANT TREATMENT.
DE3873847D1 (en) TREATMENT APPARATUS AND METHOD.
DE3484958D1 (en) AREA TREATMENT METHOD.
DE3586148T2 (en) AREA TREATMENT METHOD.
DE3762164D1 (en) SLUDGE.
DE3885851T2 (en) Modification process.
DE3781881D1 (en) METAL TREATMENT.
DE3875192D1 (en) EXHAUST TREATMENT.
DE69022813T2 (en) Waste treatment.
DE3874638D1 (en) TREATMENT APPARATUS AND METHOD.
DE3873848D1 (en) TREATMENT APPARATUS AND METHOD.
DE69114853T2 (en) WASTEWATER TREATMENT.
DE3676509D1 (en) WASTEWATER TREATMENT PLANT.
NO862916D0 (en) SEWAGE WASTEWATER TREATMENT.
ATE85036T1 (en) WASTEWATER TREATMENT PROCESS.
KR890008864U (en) Wastewater treatment system using Media Unit
NO880533D0 (en) SEWAGE TREATMENT.
IT8423907A0 (en) TREATMENT METHOD.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee